package com.abner.design.patterns.facade;

/**
 * 投影仪
 * @author abner
 */
public class Projector {

	private Projector() {};

	private static Projector instance = new Projector();
	
	public static Projector getInstance() {
		return instance;
	}
	
	public void on() {
		System.out.println(" Projector on ");
	}
	
	public void off() {
		System.out.println(" Projector ff ");
	}

}
